Quick construction method for segment No.0 of continuous beam

A construction method and rapid technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of long construction period of No. 0 block of continuous beams, and achieve the effects of shortening the construction period, less investment, and saving costs

Active Publication Date: 2012-06-13
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the construction period of block No. 0 of the continuous beam is relatively long

Method used

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  • Quick construction method for segment No.0 of continuous beam
  • Quick construction method for segment No.0 of continuous beam
  • Quick construction method for segment No.0 of continuous beam

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings. For ease of description, in the following embodiments, the direction along the bridge is used as the front-rear direction, and the direction across the bridge is used as the left and right directions.

[0025] The continuous beam No. 0 block rapid construction method provided by the present invention comprises the following steps:

[0026] A10, such as figure 1 As shown, six assembled foundations 21, 22, 23, 24, 25 and 26 are constructed next to the pier position of the main pier 4. The above six assembled foundations are arranged in two rows along the bridge direction, and on the top surface of each assembled foundation The first and second wedges 51, 52 are spot welded respectively on the top, the first and second wedges 51, 52 are arranged along the bridge direction, and the first wedges 51 on the assembled foundations 21, 22 and 25, 26 are close to the main pier 4...

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Abstract

The invention discloses a quick construction method for a segment No.0 of a continuous beam, which includes: A10, constructing an assembly foundation along a bridge beside a main pier, wherein the assembly foundation is used for assembling an integral lifting platform for reinforced forms of the segment No.0; A20, synchronously constructing the integral lifting platform for the reinforced forms of the segment No.0 during construction of the main pier, wherein the integral lifting platform for the reinforced forms of the segment No.0 is complete before the main pier is complete; A30, lifting the integral lifting platform for the reinforced forms of the segment No.0 to the top of the main pier, and performing girder concreting with the segment No.0 and performing tensioning and grouting for a bridge body. By the method, the integral lifting platform for the reinforced forms of the segment No.0 is assembled and the forms are mounted and tied with rebars when construction of the main pier cap and a pier body starts, no interference with construction of the body of the main pier exists, and accordingly, construction period can be shortened greatly.

Description

technical field [0001] The invention relates to a construction method for a long-span continuous girder bridge, in particular to a rapid construction method for No. 0 block of the continuous girder. Background technique [0002] Long-span continuous girder bridges are generally constructed using the cantilever pouring method, which is mainly divided into four parts, namely, the No. 0 block of the top beam section of the pier, the symmetrical cantilever pouring part of the hanging basket, the straight line section of the side span, and the closing section of the side span and the middle span. Among them, the construction of No. 0 block is a very important stage in the construction of continuous beam cantilever pouring method. [0003] At present, the conventional continuous beam No. 0 block construction method is to install the No. 0 block support system after the pier body is poured, then assemble the No. 0 block steel formwork on the support system, and finally pour concret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/10
Inventor 刘晓阳秦顺全李海宏刘玉峰耿克强贾为民何中华刘绍游
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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